COS128C

Based on COSINE (Coresine) official datasheets and authorized distributor product pages:

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**Description**
- 36V precision low-noise instrumentation amplifier
- Low-power, general purpose instrumentation amplifier offering excellent accuracy
- Versatile 3-op amp design with small footprint
- Gain set from 1 to 10,000 with a single external resistor
- Laser-trimmed for very low offset voltage, low drift, and high common mode rejection
- Housed in SOP-8 surface mount package
- **Product Status:** Active (in production) – please verify with manufacturer before use

**Features**
- Low offset voltage: 50µV (Max.)
- Low drift: 0.2µV/°C
- Low input bias current: 2nA (Max.)
- Gain bandwidth product: 1.5MHz
- Slew rate: 1.0V/µs
- Wide supply range: ±2.25V to ±18V
- Low quiescent current: 1.0mA – ideal for battery-powered systems
- Unity gain stable
- Input over-voltage protection
- Extended temperature range: –40°C to +125°C
- Available in SOP-8, MSOP-8, and DIP-8 packages
- RoHS compliant

**Key Specifications** (Typical @ 25°C)
- Number of Channels: Single
- Supply Voltage (Single): 4.5V to 36V
- Supply Voltage (Dual): ±2.25V to ±18V
- Gain Bandwidth Product (GBW): 1.5MHz
- Slew Rate (SR): 1.0V/µs
- Input Offset Voltage (Vos): 50µV max
- Input Offset Voltage Drift (Vos TC): 0.2µV/°C
- Input Bias Current (Ib): 2nA max
- Input Offset Current (Ios): 1nA
- Input Voltage Noise Density (en): 8nV/√Hz @ 1kHz
- Common Mode Rejection Ratio (CMRR): 125dB
- Power Supply Rejection Ratio (PSRR): 120dB
- Quiescent Current (Iq): 1.0mA
- Output Current: 10mA
- Operating Temperature: –40°C to +125°C
- Package / Case: SOP-8

**Alternative Part Numbers** (Reference only – please verify with manufacturer)
- INA128 (Texas Instruments)
- INA129 (Texas Instruments)
- AD620 (Analog Devices)
- COS128U (SOP-8, similar specifications, same series)
- COS128UA (SOP-8, similar specifications, same series)
- COS128P (DIP-8, same series)
- COS128PA (DIP-8, same series)

**Applications**
- Medical instrumentation
- RTD sensor amplifiers
- Data acquisition systems
- Thermocouple amplifiers
- Bridge transducer amplifiers
- Industrial process controls
- Precision measurement and test equipment

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> **Note:** All parameters are subject to the official COSINE (Coresine) COS128C datasheet. Specifications are typical values and may vary with operating conditions. Please verify all specifications with the manufacturer's official documentation before use.